Happy Hacking or we call a geekend

Moin

As you can see on the picture sitting with Thinkpads can be very social. Reminds me of this famous picture with guys sitting on a not yet finished skyscraper.

Posted in Event | 2 Comments »

Long Night of Stuttgart Museums

Moin

Last weekend was a big event in Stuttgart. Its called “Lange Nacht der Museen“. Many many museums and galleries are open until 2 o’clock in the morning. Lift organized this event and they also hired a log (well not enough) buses to transport all the people around Stuttgart. Well most of the time you spend waiting for totally overcrowded buses but nevertheless it was a great event. Thanks to Lift for this. Besides the Mercedes Museum, Boat tour in the Stuttgarter Harbor (yes Stuttgart has an Harbor), Wine Museum we visit the bunker below the marked place. Here are some pictures of the former bunker which was an hotel after the second World War and was given up completely long time ago. They had some pictures on the wall how the hotel was looking before when it was still active. And besides that they invited the last active hotel employee who talk about old times.

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Schematic Roboter Leg

Moin
After a lot of experiments with Atmel and servos the schematic design for the leg controller is ready. Unfortunately the Atmega8 has the I2C interface on 2 of the ACDs so only 4 ACDs are left. Therefore I have to use 1 Atmega8 for each leg to control the 3 servos. Besides the PWM servo control I also added 3 PWM LED controllers (via transistor). Just in case later on I decide to “pimp my robot” Well at least I can use them for visual debugging when I train the robot to walk. The idea of this schematic is quite easy. There are

• 2 connectors for the bus (i2c and power)
• 3 connectors for LEDs (transistor connected)
• 3 PWM servo connectors (with current (resistor) measurement)
• 1 SPI interface to flash the atmel onboard

Well its not a big deal but maybe someone finds it usefull. Next week I have to fight with placing it on a board without to many crossings.

Posted in Atmel, Roboter | No Comments »